diff options
Diffstat (limited to 'arch/powerpc/mm/pgtable_64.c')
| -rw-r--r-- | arch/powerpc/mm/pgtable_64.c | 34 |
1 files changed, 13 insertions, 21 deletions
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index 724f97e5dee..484d24f9208 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -67,30 +67,9 @@ #include <asm/vdso.h> #include <asm/imalloc.h> -#if PGTABLE_RANGE > USER_VSID_RANGE -#warning Limited user VSID range means pagetable space is wasted -#endif - -#if (TASK_SIZE_USER64 < PGTABLE_RANGE) && (TASK_SIZE_USER64 < USER_VSID_RANGE) -#warning TASK_SIZE is smaller than it needs to be. -#endif - -int mem_init_done; unsigned long ioremap_bot = IMALLOC_BASE; static unsigned long phbs_io_bot = PHBS_IO_BASE; -extern pgd_t swapper_pg_dir[]; -extern struct task_struct *current_set[NR_CPUS]; - -unsigned long klimit = (unsigned long)_end; - -/* max amount of RAM to use */ -unsigned long __max_memory; - -/* info on what we think the IO hole is */ -unsigned long io_hole_start; -unsigned long io_hole_size; - #ifdef CONFIG_PPC_ISERIES void __iomem *ioremap(unsigned long addr, unsigned long size) @@ -355,3 +334,16 @@ int iounmap_explicit(volatile void __iomem *start, unsigned long size) EXPORT_SYMBOL(ioremap); EXPORT_SYMBOL(__ioremap); EXPORT_SYMBOL(iounmap); + +void __iomem * reserve_phb_iospace(unsigned long size) +{ + void __iomem *virt_addr; + + if (phbs_io_bot >= IMALLOC_BASE) + panic("reserve_phb_iospace(): phb io space overflow\n"); + + virt_addr = (void __iomem *) phbs_io_bot; + phbs_io_bot += size; + + return virt_addr; +} |